Dom explains that the leaked information about next-gen GTA 5 gameplay trailer has been unearthed via GTA marketplace source code along the lines of earlier leaks including Independence Day DLC and I'm Not a Hipster Update.

As another discerning GTA 5 tipster, Declan, points out in the video, the leaked source code hints at a new gameplay trailer for GTA 5 next-gen or the normal trailer coming to the Xbox Live marketplace and PlayStation network.

The source code basically shows a new entry that reads: "Grand Theft Auto V for Xbox One," which is followed by the date stamp and a new game content entry with the following description:

"Los Santos: a sprawling metropolis full of self-help gurus, starlets and fading celebrities struggling to stay afloat in an era of economic uncertainty and cheap cable TV. Amidst the turmoil, three very different criminals risk everything in a series of daring and dangerous heists that could set them up for life."

The game content description is followed by the title description for GTA 5 next-gen, which reads as follows:

"The critically acclaimed, record-breaking open world, Grand Theft Auto V comes to Xbox One. GTAV will use the power of Xbox One to deliver across-the board enhancements including increased resolution and graphical detail, denser traffic, greater draw distances, upgraded AI, new wild-life, and advanced weather and damage effects for the ultimate open world experience.

"GTAV for Xbox One also includes Grand Theft Auto Online, the ever-evolving GTA Universe. All content and gameplay released since the launch of GTA Online will be available for players on Xbox One. Current players will be able to transfer their existing GTA Online progression to Xbox One."

The source code also mentions the release date for the Xbox One trailer that reads: 2014-07-24 and the time stamp reads: 00:00:00, which translates to 12am midnight.

Given the vague information in the leaked source code, it is not yet clear if a new Xbox One trailer would be released on 24 July or if we would get to see the same old trailer on its official website for Xbox One.

The tipsters also add that the next-gen trailer was recently spotted for a brief moment on the front page as well as on dashboard of the Xbox Live marketplace, although Rockstar has not officially announced or released the new trailer.

If the past is any indication, the leaked DLC info found in source code actually comes out a day before or sometimes a couple of weeks ahead of the official release.

Going by the leaked source code, Dom concludes that we might see the release of Xbox One and PS4 gameplay trailer in the next couple of days or by the end of this week.